#include "Adafruit_NeoPixel.h"

// Parameter 1 = number of pixels in strip
// Parameter 2 = pin number (most are valid)
// Parameter 3 = pixel type flags, add together as needed:
//   NEO_RGB     Pixels are wired for RGB bitstream
//   NEO_GRB     Pixels are wired for GRB bitstream
//   NEO_KHZ400  400 KHz bitstream (e.g. FLORA pixels)
//   NEO_KHZ800  800 KHz bitstream (e.g. High Density LED strip)
Adafruit_NeoPixel strip = Adafruit_NeoPixel(60, 6, NEO_GRB + NEO_KHZ800);

unsigned long time;

void setup() {
  strip.begin();
  strip.show(); // Initialize all pixels to 'off'
  Serial.begin(9600);
}

void loop() {
  // Some example procedures showing how to display to the pixels:
 //colorWipe(strip.Color(255, 255, 255), 1); // Red
 //colorWipe(strip.Color(0,0,0),1);
  //strip.setPixelColor(5,strip.Color(255,255,255));
  //delay(100);
  //strip.setPixelColor(5,strip.Color(0,0,0));
  //strip.show();
 // delay(1);
/* time = millis();
 for (int i = 0 ; i < 100 ; i++)
 {
   colorWipe(strip.Color(0,0,0),1);
   colorWipe(strip.Color(255,255,255),1);
   strip.show();
 }
  time = millis() - time;
  Serial.println(time);
*/ //colorWipe(strip.Color(0, 0, 0), 1); // Green
 //colorWipe(strip.Color(0, 0, 255), 1); // Blue
 rainbow(20);
// rainbowCycle(20);
}

// Fill the dots one after the other with a color
void colorWipe(uint32_t c, uint8_t wait) {
  for(uint16_t i=0; i<strip.numPixels(); i++) {
      strip.setPixelColor(i, c);
  }    strip.show();
  
 //delay(wait);
  
}

void rainbow(uint8_t wait) {
  uint16_t i, j;

  for(j=0; j<256; j++) {
    for(i=0; i<strip.numPixels(); i++) {
      strip.setPixelColor(i, Wheel((i+j) & 255));
    }
    strip.show();
    
//    delay(wait);
  }
}

// Slightly different, this makes the rainbow equally distributed throughout
void rainbowCycle(uint8_t wait) {
  uint16_t i, j;

  for(j=0; j<256*5; j++) { // 5 cycles of all colors on wheel
    for(i=0; i< strip.numPixels(); i++) {
      strip.setPixelColor(i, Wheel(((i * 256 / strip.numPixels()) + j) & 255));
    }
    strip.show();
    delay(wait);
  }
}

// Input a value 0 to 255 to get a color value.
// The colours are a transition r - g - b - back to r.
uint32_t Wheel(byte WheelPos) {
  if(WheelPos < 85) {
   return strip.Color(WheelPos * 3, 255 - WheelPos * 3, 0);
  } else if(WheelPos < 170) {
   WheelPos -= 85;
   return strip.Color(255 - WheelPos * 3, 0, WheelPos * 3);
  } else {
   WheelPos -= 170;
   return strip.Color(0, WheelPos * 3, 255 - WheelPos * 3);
  }
}

